"I don't have a cell phone. I won't carry a cell phone," says Stallman, founder of the free software movement and creator of the GNU operating system. "It's Stalin's dream. Cell phones are tools of Big Brother. I'm not going to carry a tracking device that records where I go all the time, and I'm not going to carry a surveillance device that can be turned on to eavesdrop."
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Ironically enough, Stallman was speaking to me on a cell phone. Not his own, of course, but one he borrowed from a friend in Spain while on a European speaking tour. Over the course of 38 minutes, our connection was lost five times, including just after Stallman's comments about electronic eavesdropping and free software for phones. We tried to connect again several hours later but were unable to complete the interview via phone. Stallman answered the rest of my questions over e-mail.

There are four essential software freedoms, Stallman explained. "Freedom Zero is the freedom to run the program as you wish. Freedom 1 is the freedom to study the source code, and change it so the program does your computing as you wish. Freedom 2 is the freedom to help others; that's the freedom to make and distribute exact copies when you wish. And Freedom 3 is the freedom to contribute to your community, which is the freedom to distribute copies of your modified versions when you wish."

Stallman came up with the term "copyleft" to indicate licenses that ensure free software code cannot be redistributed in proprietary products.